﻿/* *********************************************************************
   Copyright 2009-2010 MySpace

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
********************************************************************* */

using System;
using System.Collections.Generic;
using System.Text;

namespace Negroni.DataPipeline
{
	/// <summary>
	/// Interface to improve performance on evaluating expression values.
	/// Implement this interface to aid the DataContext in retrieving deep values.
	/// </summary>
	public interface IExpressionEvaluator
	{
		/// <summary>
		/// Facilitates resolving an expression value for the current object.
		/// </summary>
		/// <param name="expression"></param>
		/// <param name="parameters"></param>
		/// <returns></returns>
		object ResolveExpressionValue(string expression);
	}
}
